I've said this before, but I'd say it again: anti-AI people, instead of AI users, are usually those who expect AI to be magical panacea.
The vibe reminds me of some people who are against static typing because "it can't catch logical error anyway."
The only code you do not have to maintain is code that is fully perfect (100% accurate, 100% of the time). Bus factor zero is a problem for code that needs to be maintained. If AI is short of the 100%, then it is generating code that needs to be maintained. Ergo, a bus factor zero will be a problem for AI generated code (until such time as that code is perfect).